CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net loss	$ (12,993)	$ (7,779)
Gain on sale of discontinued operations		(449)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,468	1,495
Impairment of goodwill and long-lived assets	988
Accretion of interest to related party liability	265	290
Amortization of debt issuance costs	324	1,877
Stock-based compensation expense	2,571	457
Changes in operating assets and liabilities:
Accounts receivable	3,744	(562)
Inventories	(3,513)	(1,207)
Prepaid expenses and other assets	(2,566)	(115)
Accounts payable	512	1,558
Payment obligation liability	(568)	(555)
Deferred revenue	406	(185)
Accrued expenses and other liabilities	529	(1,386)
Net cash used in operating activities	(8,833)	(6,561)
Cash flows from investing activities:
Capital expenditures	(410)	(544)
Proceeds from sale of business		1,286
Net cash (used in) provided by investing activities	(410)	742
Cash flows from financing activities:
Proceeds from issuance of debt, net of issuance costs	4,000	16,000
Proceeds from capital raise, net of issuance costs		4,171
Proceeds from issuance of common stock under employee stock purchase plan and options and warrants exercised	46	46
Payments on financial liabilities		(7,211)
Repurchase of common stock	(650)
Net cash provided by financing activities	3,396	13,006
Effect of exchange rates on cash	146	227
Net (decrease) increase in cash	(5,701)	7,414
Cash of continuing operations, at beginning of period	36,547	5,095
Add: Cash of discontinued operations, at beginning of period		16
Cash of continuing operations, at end of period	30,846	12,525
Non-cash investing and financing activities:
Common stock issued to settle earn-out obligation	3,510
Common stock issued in connection with stock bonus and incentive plans		356
Common stock issued to acquire share of noncontrolling interest	1,216	37
Property and equipment included in accounts payable	$ 51	$ 86